Thermo Sensor Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 95
Error Contents :
Transmission Error
Details :
Condition of occurrence :
When the signal is cut off for more than 10 minutes from the registered Indoor unit (not including Slave unit).
Release condition : 1. The signal has been received from the Indoor units that was creating the error.
2. MPU has been booted up. (Release from the reset operation, the power failure stand-by operation.
Cause 1 : Connection failure
Check transmission cable
Check disconnected power line for Indoor unit.
Check if convertor power line is disconnected.
OK
Cause 2 : Check outside cause (Voltage drop or noise, etc.)
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line (Neon bulb or electric equipment that may cause
OK
Cause 3 : Remote Controller is defective.
Replace Group Remote Controller.
5. Wired Remote Controller (UTY-RNK )
Trouble shooting 96
Error Contents :

Thermo Sensor Error

Details :
Condition of occurrence : Thermistor in remote controller is open or shorted.
Release condition : Thermistor in remote controller is not open or shorted.
Cause 1 : Remote Controller internal thermistor trouble Cause 1 : Remote controller internal thermistor trouble
Replace remote controller.
Symptom :
Error Code display [ 1 4 ]
OPERATION LED is flashing.
Symptom :
Thermostat Sensor display is flashing.
04-91
harmonic wave).